development by Wechsler

...1942 Wechsler issued his first revision. The Wechsler Intelligence Scale for Children was published in 1949 and updated in 1974. In 1955 Wechsler developed yet another adult intelligence test, the
Wechsler Adult Intelligence Scale (WAIS), with the same structure as his earlier scale but standardized with a different population, including 10 percent nonwhites to reflect the U.S. population....

measurement of intelligence

The most widely used intelligence tests include the Stanford-Binet Intelligence Scale and the Wechsler scales. The Stanford-Binet is the American adaptation of the original French Binet-Simon intelligence test; it was first introduced in 1916 by Lewis Terman, a psychologist at Stanford University. The individually administered test, revised in 1937, 1960, and 1972, evaluates persons two years...